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Medium, CVSS 5.3amended

AWS CDK RestApi not generating authorizationScope correctly in resultant CFN template

CVE-2024-45037GHSA-qj85-69xf-2vxq

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (aws-cdk 2.148.1), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • npm aws-cdk

    Affected
    >= 2.142.0, <= 2.148.0
    Fixed in
    2.148.1

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS 4.0
5.3 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N · score source
EPSS
  • CVE-2024-45037: 0.31% estimated exploitation activity in the next 30 days; percentile 24.35 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.
Source description

As published by the source; long descriptions are shortened.

Summary The AWS Cloud Development Kit (CDK) is an open-source framework for defining cloud infrastructure using code. Customers use it to create their own applications which are converted to AWS CloudFormation templates during deployment to a customer’s AWS account. CDK contains pre-built components called "constructs" that are higher-level abstractions providing defaults and best practices. This approach enables developers to use familiar programming languages to define complex cloud infrastructure more efficiently than writing raw CloudFormation templates. We identified an issue in AWS Cloud Development Kit (CDK) which, under certain conditions, can result in granting authenticated Amazon Cognito users broader than intended access. Specifically, if a CDK application uses the "RestApi" construct with "CognitoUserPoolAuthorizer" as the authorizer and uses authorization scopes to limit access. This issue does not affect the availability of the specific API resources. Impact…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 3 · amended ·

    Amended from ghsa record GHSA-qj85-69xf-2vxq

  2. Revision 2 · amended ·

    Reviewed OSV alias/range/CVSS4 correction; package source scopes and original publication preserved. No customer finding resolved.

  3. Revision 1 · created ·

    Published from osv record GHSA-qj85-69xf-2vxq

Agent brief

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# Patch Next advisory brief: CVE-2024-45037

Advisory: AWS CDK RestApi not generating authorizationScope correctly in resultant CFN template
IDs: CVE-2024-45037, GHSA-qj85-69xf-2vxq
Record: https://patchnext.com/advisories/cve-2024-45037 (revision 3, source checked 26 Oct 2026, 12:31 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 5.3)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: aws-cdk 2.148.1. A vendor fix does not mean a deployment is fixed.

## Affected components
- npm aws-cdk: affected >= 2.142.0, <= 2.148.0; fixed in 2.148.1

## Suggested inspection (read-only)
- `npm ls aws-cdk --all`: lists every installed copy and version, including transitive ones. Run in the project root after `npm ci`.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on aws-cdk.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/GHSA-qj85-69xf-2vxq (OSV record GHSA-qj85-69xf-2vxq lists affected ranges: npm aws-cdk >=2.142.0 <2.148.1 (fixed))
- Verified: https://github.com/advisories/GHSA-qj85-69xf-2vxq (GitHub-reviewed advisory GHSA-qj85-69xf-2vxq lists affected ranges: npm aws-cdk >=2.142.0 <=2.148.0)

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